Brother International SE600 Operation Manual - Page 84

Troubleshooting Slowly turn the handwheel toward you c (counterclockwise), and look from all sides to check that the needle falls at the center of the opening in the needle plate. If the needle contacts the needle plate, remove the needle plate, and then install it again, starting with step m in "Removing the fabric from the machine" on page 80. 1 Opening in the needle plate a 2 Handwheel b Select stitch . At this time, increase the stitch length d and width to their maximum settings. • For details on changing the settings, refer to "Setting the stitch width" on page 29 and "Setting the stitch length" on page 29. Slowly turn the handwheel toward you e (counterclockwise) and check that the needle bar and feed dogs operate correctly. If the needle or feed dogs contact the needle plate, the machine may be malfunctioning; therefore, contact your nearest Brother authorized service center. Turn off the machine, and then install the bobbin and f presser foot. Never use a scratched or damaged presser foot. Otherwise, the needle may break, or sewing performance may suffer. • Refer to "Installing the bobbin" on page 16 and "Replacing the presser foot" on page 23. Correctly thread the machine. g • For details on threading the machine, refer to "Upper Threading" on page 17. Perform trial sewing with cotton fabric. h If the thread becomes tangled under the bobbin winder seat If the bobbin winding starts when the thread is not passed under the pretension disk of the bobbin-winding thread guide correctly, the thread may become tangled under the bobbin winder seat. CAUTION • Do not remove the bobbin winder seat even if the thread become tangled under the bobbin winder seat. Otherwise, the cutter in the bobbin winder seat may be damaged. • Do not remove the screw on the bobbin winder guide post, otherwise the machine may be damaged; you cannot wind off the thread by removing the screw. a 1 Screw of the bobbin winder guide post Stop the bobbin winding. a Cut the thread with scissors beside the bobbin-winding b thread guide. Slide the bobbin winder shaft to the left, and then c remove the bobbin from the shaft and cut the thread leading to the bobbin in order to be able to completely remove the bobbin from shaft. Hold the thread end with your left hand, and wind off d the thread clockwise from under the bobbin winder seat with your right hand as shown below. Note • Incorrect sewing may be the result of incorrect upper threading or sewing thin fabrics. If there are poor results from the trial sewing, check the upper threading or the type of fabric being used. 82